Ulster Elks made it three wins out of three in the new Irish Hockey League with a thumping 8-0 victory over UCC.
They are joined at the top of the table on nine points by Hermes and Railway Union while Ards moved up to fourth place with victory over Greenfields.
In the big Ulster derby in the men's league, it was Lisnagarvey who came out on top against Banbridge.
They held on for a 2-1 victory while Cookstown got their first win of the campaign by beating Glenanne 5-1.
|Men's EY Hockey League|
|Three Rock Rovers||1-2||Railway Union|
|Women's EY Hockey League|
|Pembroke Wanderers||2-3||Cork Harlequins|
In the game at Jordanstown, Irish International captain Megan Frazer scored four goals in leading the Elks to a comprehensive win over the students from Cork.
She opened the scoring as the Ulster side netted three times in a four-minute spell in the first period.
Shirley McCay, Rebecca Barry, Anna Kozniuk and Jessica McMaster were also on the score sheet.
Joining the Elks with a 100% record are Dublin side Hermes who inflicted another defeat on Pegasus.
International Nikki Evans scored the only goal of the game five minutes from time leaving the Belfast side with only one point from their opening three games and feeling aggrieved because a goal from Stephanie Thompson was disallowed.
Railway Union also have nine points with Emer Lucey's strike from a penalty corner from the last play of the game securing a 2-1 win at UCD.
Ards moved up to fourth place in the table with a 6-0 triumph over pointless Greenfields in Galway.
Chloe Brown scored twice giving her three goals in her last two games. The other goals for the North Down side came from Becky Weir, Tamara Macleod, Scarlett Holdsworth and Amy Benson.
Cork Harlequins won their first game of the season with a 3-2 success at Pembroke Wanderers.
At Havelock Park, an early strike from Paul Gleghorne, his first goal for the club since his summer switch from Instonians, gave Lisnagarvey the lead over Banbridge and an own goal made it 2-0 after three quarters.
Jonathan McKee's goal in the final quarter for the home side meant a frantic last few minutes but Garvey held on for a big early season 2-1 win.
With Monkstown playing in Europe and Cork C of I taking on Annadale on Sunday, this was missed opportunity for Banbridge to take the outright lead at the top of the table.
There was a first win for Cookstown as they beat Glenanne 5-1 at home thanks to goals from Keith Black who netted twice, John Ames, Mark Crooks and Simon Todd while Railway Union came from behind to win 2-1 at Three Rock Rovers.